Apparatus for dyeing paper and cardboard during the manufacture on paper making machines



Sept. 15, 1931. sc u c 1,823,845

APPARATUS FOR DYEING PAPER AND CARDBOARD DURING THE MANUFACTURE ON PAPER MAKING MACHINES Filed June 23. 1930 a mi? U [I n -==qn h Patented Sept. 15, 1931 UNITED. STATES PATENT oF PAUL SCHUMACHER, OF MAGPEIBURG, QERMANY APPARATUS FOR DYEING PAPER AND CARDBOARD DURING. THE MANUFACTURE ON PAPER MAKING MACHINES Application filed June 23, 1930, Serial No. 463,295, and in Germany January 20, 1927.

This invention relates to an apparatus, which enables the'paper to be provided with colored designs and inscriptions in any desired number of colors during the production of the paper. As apparatus the known Egoutteur cylinder is used, which is provided with metal grooves, pieces of felt or other material adapted to absorb liquid, and which transfers the color to the unfinished still Wet papers. In this manner it is possi-.

ble to provide white and vat dyed papers with designs and inscriptions of any desired colors in a single working operation. This method presents the advantage that the production is much cheaper than by the'methods hitherto known, in which only finished papers (mostly wrapping paper comes into question) were provided with multicolor designs, etc. by printing or etching, which could only be efi'ected in several operations.

Hitherto Egoutteur cylinders were used ahnost exclusively for impressing water marks. It is true however that they! have already been used for applying designs and inscriptions to the paper mass, whilst still in moist condition, but these designs and inscriptions were only single colored, as the color had to be conveyed by a cylinder dipping in a vessel over a distributing cylinder to the egoutteur.

According to the invention the colors, ow-

ing to the employment of the metal grooves, felt parts and similar dye carriers, to which the color is supplied from inside bycolor conduits rotating with the' egoutteur, are transmitted directly to the paper mass in a single operation. The egoutteur is preferably connected co-axially with a chamber cylinder, which containsthe different colors, separated the one from the other. Each chamber must be connected by a separate color conduit with a surface of the material giving up the color.

It is advisable to arrange a nozzle or group I of nozzles in front of the Egoutteur cylinder.

It is then possible to provide. noncolored paper with aground color or to provide papers, which have already been given a ground color in the vat, with further colors, whereupon the design or the like is pressed in by the egoutteur.

It should here be mentioned that color cylinders already exist for simultaneously applying different colors to which cylinders the color is supplied from the inner side. The designs, etc. are already cut out of the casing of the cylinder, which consequently acts as a template. The colors, which are stored in different containers, are sprayed by an injector. Spraying is however less advantageous than pressing for obtaining designs with clear contours. Moreover the disadvantage also exists, that for each design a separate casing must be provided, and the ring containing very complicated cams or the like for controlling the Valves of the color containers must be exchanged, whereas, according to the invention, merely the metal grooves, felt parts or the like need be changed on the Egoutteur cylinder.

An embodiment of the invention is illustrated by way of example in the accompanying drawings in which Fig. 1 shows diagrammatically the are rangement of the nozzle and the Egoutteur cylinder on the jigging part of the paper making machine.

Fig.'2 shows the egoutteur view. 7

Fig. 3 is an end view of the egoutteur.

The mass layer runs in known manner along the metal cloth a, which is guided over the end rolls 6. The mass layer is exposed between the register cylinders c and the top bands (1. Behind the roll 9' for reversing the top bands nozzles h are arranged, to which the color is supplied by a pipe is. These nozzles can be arranged stationary or movable, for example they may describe in known manner gyrating or oscillating movements, and thereby form a pattern of any kind on the surface of the material. The color is supplied from containers through the pipes in,

' is illustrated in Figs. 2 and 3 of the accompanying drawings. The egoutteur is proin top plan vided with surface recesses 1' instead of the metal wires forming the water marks, which recesses are formed either as small metal grooves or of hard felt. In both instances the surfaces fill with color, which is supplied to the cylinders on the rotation of the egoutteur.

The feed of' the color is efiected in the following manner:

-At the side of the Egoutteur cylinders and coaxially therewith a chamber cylinder m is arranged, which is divided into a plurality of compartments by partitions 0, which compartments are fillediwith different colors. A conduit n leads from each compartment to a color carrying surface r. In this manner several colors may be applied at the same time, if to each 'felt piece or the like a different color is supplied and it is seen that the felt pieces do not come into contact with each other. The feed of the color from the divided drum m to the color surfaces r is ef fected by compressed air, which is supplied to the individual compartments through the conduit 10. Inthis'manner any desired number of colors may be held available. The compartments not required are-closed. The divided drum m must naturally rotate same as the egoutteur.

I claim 1. An apparatus for coloring paper and cardboa. 11 during manufacture on the paper making machine, comprising in combination an Egoutteur cylinderadapted to press the color into the paper mass whilst still in moist condition, and metal grooves on the circumference of said cylinder corresponding to the design adapted to take up liquid color.

2. An apparatus for coloring paper' and cardboard during manufacture on the paper making machine, comprising in combination an Egoutteur cylinder adapted to press the color into the paper mass Whilst still in moist condition, and felt pieces on the circumference of said 0 linder corresponding to the design adapte to take up liquid color.

3. An apparatus for coloring paper and cardboard during manufacture on the paper making machine, comprismg in combination in Egoutteur cylinder, color absorbing means correspondingfto the pattern of the design arranged on the circumference of said egoutteur, a chamber cylinder arranged coaxially with said Egoutteurcylinder, and a conduit connecting each of saidchambers to one of said color absorbing means, each of said chambersbeing under pressure.

4;. An apparatus for coloring paper and cardboard during manufacture on the paper making machine, comprising in combination an Egoutteur cylinder, color absorbing means corresponding to the pattern of the design arranged on the circumference of said egoutteur, a chamber cylinder arranged coaxially necting each of said chambers to one of said color absorbing means, and a nozzle arranged in front of said Egoutteur cylinder.

7 5. An apparatus for coloring paper and cardboard during manufacture on the paper making machine, comprising in combination an Egoutteur cylinder, color absorbing means corresponding to the pattern of the design arranged on the circumference of said egoutteur, a chamber cylinder arranged coaxially with said Egoutteur c linder, a conduit connecting each of said chambers to one of said color absorbing means, and a group of nozzles arranged in front of said Egoutteur cylinder.

In testimony whereof I aflix my signature.

PAUL SCHUMACHER. 

